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BOSTON MARATHON 2023

Kathryn Mccarthy

Bib: 15076•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 28%
Division (F18-39)
#0 / 4884
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:30
Rank: #13137
Start → 5K
24:30 | 7:53/mi
10K· 6.21 mi
49:00
Rank: #13480 (-343)
5K → 10K
24:30 | 7:53/mi
15K· 9.32 mi
1:13:22
Rank: #13342 (+138)
10K → 15K
24:22 | 7:51/mi
20K· 12.43 mi
1:38:02
Rank: #13221 (+121)
15K → 20K
24:40 | 7:56/mi
Half· 13.11 mi
1:43:21
Rank: #13182 (+39)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:02:50
Rank: #13117 (+65)
Half → 25K
19:29 | 8:02/mi
30K· 18.64 mi
2:28:48
Rank: #13155 (-38)
25K → 30K
25:58 | 8:21/mi
20M
2:39:48
Rank: #12973 (+182)
30K → 20M
11:00 | 8:06/mi
21M
2:48:23
Rank: #12816 (+157)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:54:14
Rank: #12711 (+105)
21M → 35K
5:51 | 7:49/mi
23M
3:04:24
Rank: #12573 (+138)
35K → 23M
10:10 | 8:07/mi
24M
3:12:15
Rank: #12450 (+123)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:19:05
Rank: #12364 (+86)
24M → 40K
6:50 | 8:00/mi
25.2M
3:22:03
Rank: #12331 (+33)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:29:39
Rank: #12153 (+178)
25.2M → Finish
7:36 | 7:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:21
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:46:18
Pace8:07 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0824:307:5324:30
7:53
-
10K
6.21 mi11:19:3849:007:5324:30
7:53
0:00
15K
9.32 mi11:44:001:13:227:5224:22
7:51
-0:02
20K
12.43 mi12:08:401:38:027:5324:40
7:56
+0:05
Half
13.11 mi12:13:591:43:217:535:19
7:48
-0:08
25K
15.53 mi12:33:282:02:507:5419:29
8:02
+0:14
30K
18.64 mi12:59:262:28:487:5925:58
8:21
+0:19
20M
20.00 mi13:10:262:39:487:5911:00
8:06
-0:15
21M
21.00 mi13:19:012:48:238:018:35
8:35
+0:29
35K
21.75 mi13:24:522:54:148:015:51
7:49
-0:46
23M
23.00 mi13:35:023:04:248:0110:10
8:07
+0:18
24M
24.00 mi13:42:533:12:158:017:51
7:51
-0:16
40K
24.85 mi13:49:433:19:058:016:50
8:00
+0:09
25.2M
25.20 mi13:52:413:22:038:012:58
8:36
+0:36
Finish
26.22 mi14:00:173:29:398:007:36
7:27
-1:09

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:27 /mi

Average Pace

8:00 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:08

82% of race

Time at Steady Pace

37:31

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:55:0824:307:5324:30
7:53
#13137
10K
6.21 mi11:19:3849:007:5324:30
7:53
#13480
15K
9.32 mi11:44:001:13:227:5224:22
7:51
#13342
20K
12.43 mi12:08:401:38:027:5324:40
7:56
#13221
Half
13.11 mi12:13:591:43:217:535:19
7:48
#13182
25K
15.53 mi12:33:282:02:507:5419:29
8:02
#13117
30K
18.64 mi12:59:262:28:487:5925:58
8:21
#13155
20M
20.00 mi13:10:262:39:487:5911:00
8:06
#12973
21M
21.00 mi13:19:012:48:238:018:35
8:35
#12816
35K
21.75 mi13:24:522:54:148:015:51
7:49
#12711
23M
23.00 mi13:35:023:04:248:0110:10
8:07
#12573
24M
24.00 mi13:42:533:12:158:017:51
7:51
#12450
40K
24.85 mi13:49:433:19:058:016:50
8:00
#12364
25.2M
25.20 mi13:52:413:22:038:012:58
8:36
#12331
Finish
26.22 mi14:00:173:29:398:007:36
7:27
#12153
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi131373521352113093(Top 49%)3537(Top 31%)3537(Top 72%)
10K6.21 mi3.10 mi13480-3433723-2023723-20213886(Top 52%)3978(Top 35%)3978(Top 81%)
15K9.32 mi3.11 mi13342+1383658+653658+6513093(Top 49%)3537(Top 31%)3537(Top 72%)
20K12.43 mi3.11 mi13221+1213617+413617+4112967(Top 49%)3536(Top 31%)3536(Top 72%)
Half13.11 mi0.68 mi13182+393597+203597+2012784(Top 48%)3389(Top 30%)3389(Top 69%)
25K15.53 mi2.42 mi13117+653561+363561+3613061(Top 49%)3668(Top 32%)3668(Top 75%)
30K18.64 mi3.11 mi13155-383642-813642-8113422(Top 50%)3989(Top 35%)3989(Top 82%)
20M20.00 mi1.36 mi12973+1823553+893553+8911030(Top 41%)2762(Top 24%)2762(Top 57%)
21M21.00 mi1.00 mi12816+1573487+663487+6611016(Top 41%)2889(Top 25%)2889(Top 59%)
35K21.75 mi0.75 mi12711+1053436+513436+5110884(Top 41%)2836(Top 25%)2836(Top 58%)
23M23.00 mi1.25 mi12573+1383370+663370+6610660(Top 40%)2863(Top 25%)2863(Top 59%)
24M24.00 mi1.00 mi12450+1233322+483322+4810219(Top 38%)2711(Top 24%)2711(Top 56%)
40K24.85 mi0.85 mi12364+863294+283294+2810071(Top 38%)2706(Top 24%)2706(Top 55%)
25.2M25.20 mi0.35 mi12331+333289+53289+510314(Top 39%)2890(Top 25%)2890(Top 59%)
Finish26.22 mi1.02 mi12153+1783212+773212+778303(Top 31%)1975(Top 17%)1975(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13093

Females

3537

F18-39

3537

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13886

Females

3978

F18-39

3978

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13093

Females

3537

F18-39

3537

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

12967

Females

3536

F18-39

3536

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12784

Females

3389

F18-39

3389

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13061

Females

3668

F18-39

3668

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13422

Females

3989

F18-39

3989

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11030

Females

2762

F18-39

2762

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11016

Females

2889

F18-39

2889

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10884

Females

2836

F18-39

2836

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

10660

Females

2863

F18-39

2863

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10219

Females

2711

F18-39

2711

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10071

Females

2706

F18-39

2706

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10314

Females

2890

F18-39

2890

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8303

Females

1975

F18-39

1975

Passing Analysis

Category:
Athletes Passed
2220
Passed By
1236
Net Change
+984
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13137
5K → 10K163506-343#13137#13480
10K → 15K275137+138#13480#13342
15K → 20K242121+121#13342#13221
20K → Half5213+39#13221#13182
Half → 25K174109+65#13182#13117
25K → 30K175213-38#13117#13155
30K → 20M20018+182#13155#12973
20M → 21M18225+157#12973#12816
21M → 35K11611+105#12816#12711
35K → 23M15618+138#12711#12573
23M → 24M13613+123#12573#12450
24M → 40K10822+86#12450#12364
40K → 25.2M4613+33#12364#12331
25.2M → Finish19517+178#12331#12153
TOTALS22201236+984
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing